In what was another fantastic year in the world of iOS apps, we are here to bring you the titles that we, the staff of 148Apps, thought were the best of the year. Here are our top five picks for the Best Apps of 2011:

Tweetbot - Even with the latest Twitter integration in iOS 5, this app is our favorite for accessing and using the ubiquitous social networking service. Tweetbot has a ton of improvements over the official app, with a fantastic use of space and gestural support.

$4.99

Garmin Street Pilot On Demand - GPS apps are typically expensive, with high prices supposedly justified by the real time information they provide. Garmin decided to thing a bit different, offering basic navigation for $0.99, with an available $2.99 per month subscription for premium features like turn by turn voice navigation.

$0.99

Garageband - The granddaddy of consumer-level music creation apps moved from the Mac to the iPad (then the iPhone with a Universal app update) this year, bringing powerful tools to those magical devices. While it's not as full featured as the desktop app, the mobile version of Garageband is good enough for on the go hobbyists and pros alike.

$4.99

7 Billion - This is our favorite nonfiction app out to date. Published by National Geographic, it explains just what, exactly, the number 7 Billion means in plain english, has several stunning pieces of journalism on the impact our world population is having on the environment and each other, and contains world-class photographs and info graphics to support it's main points. This app presents a thoughtful and sobering look at the world population with some surprisingly hopeful possibilities for the near future.

$4.99

Orchestra To Do - Productivity apps overflow the App Store like Tribbles on the Starship Enterprise, and are equally as difficult to tell the difference between. Our pick for the best to do app is Orchestra To Do, a free yet fantastic task manager, with some great touches like voice recognition, task sharing, automatic sync, and a clean, easy to use interface. This one just shouldn't be missed.

FREE!

That's it, there's our list of the best iOS apps of the year. Did you have a preferred title that we may have overlooked? Let us know in the comments! We look forward to another great year of iOS Apps in the year 2012!